Promethium-153
Properties and data of the isotope 153Pm.
See also: list of Promethium isotopes.
General data
Name of the isotope:Promethium-153; Pm-153Symbol:153Pm or 15361PmMass number A:153 (= number of nucleons)Atomic number Z:61 (= number of protons)Neutrons N:92Isotopic mass:152.924156(10) u (atomic weight of Promethium-153)Nuclide mass:152.8906952 u (calculated nuclear mass without electrons)Mass excess:-70.64823 MeVMass defect:1.350343224 u (per nucleus)Nuclear binding energy:1257.8366111 MeV (per nucleus)
8.22115432 MeV (average binding energy per nucleon)Separation energy:SN = 7.465(27) MeV (first neutron)
SP = 7.787(26) MeV (first proton)Half-life:5.25(2) minDecay constant λ:0.0022004672398728 s-1Specific activity α:8.718107681704 × 10+18 Bq g-1
235624531.93795 Ci g-1Spin and parity:
(nuclear angular momentum)5/2-Year of discovery:1962
Radioactive Decay
Half-life T½ = 5.25(2) min (minutes) respectively 3.15 × 102 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 153Sm | 100 % | 1.912(9) MeV | |
Parent Nuclides
Direct parent isotope is: 153Nd.
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 92) and isobaric (same nucleon number A = 153) with Promethium-153. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 92 | Isobar A = 153 |
53 | 145I | |
54 | 146Xe | |
55 | 147Cs | |
56 | 148Ba | 153Ba |
57 | 149La | 153La |
58 | 150Ce | 153Ce |
59 | 151Pr | 153Pr |
60 | 152Nd | 153Nd |
61 | 153Pm | 153Pm |
62 | 154Sm | 153Sm |
63 | 155Eu | 153Eu |
64 | 156Gd | 153Gd |
65 | 157Tb | 153Tb |
66 | 158Dy | 153Dy |
67 | 159Ho | 153Ho |
68 | 160Er | 153Er |
69 | 161Tm | 153Tm |
70 | 162Yb | 153Yb |
71 | 163Lu | 153Lu |
72 | 164Hf | 153Hf |
73 | 165Ta | |
74 | 166W | |
75 | 167Re | |
76 | 168Os | |
77 | 169Ir | |
78 | 170Pt | |
79 | 171Au | |
80 | 172Hg | |
External data and identifiers
Last update: 2020-10-20
Perma link: https://www.chemlin.org/isotope/promethium-153
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